/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
+ * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
+
package org.opendaylight.protocol.bgp.rib.impl;
+import com.google.common.base.MoreObjects;
+import com.google.common.base.MoreObjects.ToStringHelper;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
+import com.google.common.net.InetAddresses;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
import java.util.Set;
-
-import org.opendaylight.protocol.bgp.concepts.BGPTableType;
-import org.opendaylight.protocol.bgp.parser.BGPMessage;
-import org.opendaylight.protocol.bgp.parser.BGPSession;
-import org.opendaylight.protocol.bgp.parser.BGPSessionListener;
-import org.opendaylight.protocol.bgp.parser.BGPTerminationReason;
-import org.opendaylight.protocol.bgp.parser.BGPUpdateMessage;
+import javax.annotation.concurrent.GuardedBy;
+import org.opendaylight.controller.config.yang.bgp.rib.impl.BGPPeerRuntimeMXBean;
+import org.opendaylight.controller.config.yang.bgp.rib.impl.BGPPeerRuntimeRegistration;
+import org.opendaylight.controller.config.yang.bgp.rib.impl.BGPPeerRuntimeRegistrator;
+import org.opendaylight.controller.config.yang.bgp.rib.impl.BgpPeerState;
+import org.opendaylight.controller.config.yang.bgp.rib.impl.BgpSessionState;
+import org.opendaylight.controller.config.yang.bgp.rib.impl.RouteTable;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
+import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
+import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
+import org.opendaylight.protocol.bgp.rib.impl.spi.AdjRIBsOutRegistration;
+import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionStatistics;
+import org.opendaylight.protocol.bgp.rib.impl.spi.RIB;
+import org.opendaylight.protocol.bgp.rib.impl.spi.ReusableBGPPeer;
+import org.opendaylight.protocol.bgp.rib.spi.BGPSession;
+import org.opendaylight.protocol.bgp.rib.spi.BGPTerminationReason;
+import org.opendaylight.protocol.bgp.rib.spi.Peer;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.DestinationIpv4Builder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Update;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes1;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes2;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerRole;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
+import org.opendaylight.yangtools.yang.binding.Notification;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import com.google.common.base.Objects;
-import com.google.common.base.Objects.ToStringHelper;
-import com.google.common.base.Preconditions;
/**
* Class representing a peer. We have a single instance for each peer, which provides translation from BGP events into
* RIB actions.
*/
-public final class BGPPeer implements BGPSessionListener {
- private static final Logger logger = LoggerFactory.getLogger(BGPPeer.class);
- private Set<BGPTableType> tables;
- private final String name;
- private final RIBImpl rib;
-
- public BGPPeer(final RIBImpl rib, final String name) {
- this.rib = Preconditions.checkNotNull(rib);
- this.name = Preconditions.checkNotNull(name);
- }
-
- @Override
- public void onMessage(final BGPSession session, final BGPMessage message) {
- if (message instanceof BGPUpdateMessage) {
- final BGPUpdateMessage m = (BGPUpdateMessage) message;
- this.rib.updateTables(this, m.getAddedObjects(), m.getRemovedObjects());
- } else {
- logger.info("Ignoring unhandled message class " + message.getClass());
- }
- }
-
- @Override
- public void onSessionUp(final BGPSession session) {
- logger.info("Session with peer {} went up with tables: {}", this.name, session.getAdvertisedTableTypes());
- }
-
- @Override
- public void onSessionDown(final BGPSession session, final Exception e) {
- // FIXME: support graceful restart
- for (final BGPTableType t : this.tables) {
- this.rib.clearTable(this, t);
- }
- }
-
- @Override
- public void onSessionTerminated(final BGPSession session, final BGPTerminationReason cause) {
- logger.info("Session with peer {} terminated: {}", this.name, cause);
- }
-
- @Override
- public final String toString() {
- return addToStringAttributes(Objects.toStringHelper(this)).toString();
- }
-
- protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
- toStringHelper.add("name", this.name);
- toStringHelper.add("tables", this.tables);
- return toStringHelper;
- }
+public class BGPPeer implements ReusableBGPPeer, Peer, AutoCloseable, BGPPeerRuntimeMXBean, TransactionChainListener {
+
+ private static final Logger LOG = LoggerFactory.getLogger(BGPPeer.class);
+
+ @GuardedBy("this")
+ private final Set<TablesKey> tables = new HashSet<>();
+ private final RIB rib;
+ private final String name;
+
+ @GuardedBy("this")
+ private BGPSession session;
+ @GuardedBy("this")
+ private byte[] rawIdentifier;
+ @GuardedBy("this")
+ private AdjRIBsOutRegistration reg;
+
+ private BGPPeerRuntimeRegistrator registrator;
+ private BGPPeerRuntimeRegistration runtimeReg;
+ private long sessionEstablishedCounter = 0L;
+
+ @GuardedBy("this")
+ private AdjRibInWriter ribWriter;
+
+ public BGPPeer(final String name, final RIB rib) {
+ this.rib = Preconditions.checkNotNull(rib);
+ this.name = name;
+
+ final DOMTransactionChain chain = rib.createPeerChain(this);
+ // FIXME: make this configurable
+ final PeerRole role = PeerRole.Ibgp;
+
+ this.ribWriter = AdjRibInWriter.create(rib.getYangRibId(), role, chain);
+ }
+
+ @Override
+ public synchronized void close() {
+ dropConnection();
+ // TODO should this perform cleanup ?
+ }
+
+ @Override
+ public void onMessage(final BGPSession session, final Notification msg) {
+ if (!(msg instanceof Update)) {
+ LOG.info("Ignoring unhandled message class {}", msg.getClass());
+ return;
+ }
+ final Update message = (Update) msg;
+ //this.rib.updateTables(this, message);
+ // update AdjRibs
+ final Attributes attrs = message.getAttributes();
+ MpReachNlri mpReach = null;
+ if (message.getNlri() != null) {
+ mpReach = prefixesToMpReach(message);
+ } else if (attrs != null && attrs.getAugmentation(Attributes1.class) != null) {
+ mpReach = attrs.getAugmentation(Attributes1.class).getMpReachNlri();
+ }
+ if (mpReach != null) {
+ this.ribWriter.updateRoutes(mpReach, attrs);
+ return;
+ }
+ MpUnreachNlri mpUnreach = null;
+ if (message.getWithdrawnRoutes() != null) {
+ mpUnreach = prefixesToMpUnreach(message);
+ } else if (attrs != null && attrs.getAugmentation(Attributes2.class) != null) {
+ mpUnreach = attrs.getAugmentation(Attributes2.class).getMpUnreachNlri();
+ }
+ if (mpUnreach != null) {
+ this.ribWriter.removeRoutes(mpUnreach);
+ }
+ }
+
+ /**
+ * Creates MPReach for the prefixes to be handled in the same way as linkstate routes
+ *
+ * @param message Update message containing prefixes in NLRI
+ * @return MpReachNlri with prefixes from the nlri field
+ */
+ private MpReachNlri prefixesToMpReach(final Update message) {
+ final List<Ipv4Prefixes> prefixes = new ArrayList<>();
+ for (final Ipv4Prefix p : message.getNlri().getNlri()) {
+ prefixes.add(new Ipv4PrefixesBuilder().setPrefix(p).build());
+ }
+ final MpReachNlriBuilder b = new MpReachNlriBuilder().setAfi(Ipv4AddressFamily.class).setSafi(
+ UnicastSubsequentAddressFamily.class).setAdvertizedRoutes(
+ new AdvertizedRoutesBuilder().setDestinationType(
+ new DestinationIpv4CaseBuilder().setDestinationIpv4(
+ new DestinationIpv4Builder().setIpv4Prefixes(prefixes).build()).build()).build());
+ if (message.getAttributes() != null) {
+ b.setCNextHop(message.getAttributes().getCNextHop());
+ }
+ return b.build();
+ }
+
+ /**
+ * Create MPUnreach for the prefixes to be handled in the same way as linkstate routes
+ *
+ * @param message Update message containing withdrawn routes
+ * @return MpUnreachNlri with prefixes from the withdrawn routes field
+ */
+ private MpUnreachNlri prefixesToMpUnreach(final Update message) {
+ final List<Ipv4Prefixes> prefixes = new ArrayList<>();
+ for (final Ipv4Prefix p : message.getWithdrawnRoutes().getWithdrawnRoutes()) {
+ prefixes.add(new Ipv4PrefixesBuilder().setPrefix(p).build());
+ }
+ return new MpUnreachNlriBuilder().setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class).setWithdrawnRoutes(
+ new WithdrawnRoutesBuilder().setDestinationType(
+ new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder().setDestinationIpv4(
+ new DestinationIpv4Builder().setIpv4Prefixes(prefixes).build()).build()).build()).build();
+ }
+
+ @Override
+ public synchronized void onSessionUp(final BGPSession session) {
+ LOG.info("Session with peer {} went up with tables: {}", this.name, session.getAdvertisedTableTypes());
+
+ this.session = session;
+ this.rawIdentifier = InetAddresses.forString(session.getBgpId().getValue()).getAddress();
+
+ for (final BgpTableType t : session.getAdvertisedTableTypes()) {
+ final TablesKey key = new TablesKey(t.getAfi(), t.getSafi());
+
+ this.tables.add(key);
+ this.rib.initTable(this, key);
+ }
+
+ this.ribWriter = this.ribWriter.transform(RouterIds.createPeerId(session.getBgpId()), this.rib.getRibSupportContext(), this.tables);
+
+ // Not particularly nice, but what can
+ if (session instanceof BGPSessionImpl) {
+ this.reg = this.rib.registerRIBsOut(this, new SessionRIBsOut((BGPSessionImpl) session));
+ }
+ this.sessionEstablishedCounter++;
+ if (this.registrator != null) {
+ this.runtimeReg = this.registrator.register(this);
+ }
+ }
+
+ private synchronized void cleanup() {
+ // FIXME: BUG-196: support graceful restart
+ this.ribWriter.cleanTables(this.tables);
+ for (final TablesKey key : this.tables) {
+ this.rib.clearTable(this, key);
+ }
+
+ if (this.reg != null) {
+ this.reg.close();
+ this.reg = null;
+ }
+
+ this.tables.clear();
+ }
+
+ @Override
+ public void onSessionDown(final BGPSession session, final Exception e) {
+ LOG.info("Session with peer {} went down", this.name, e);
+ releaseConnection();
+ }
+
+ @Override
+ public void onSessionTerminated(final BGPSession session, final BGPTerminationReason cause) {
+ LOG.info("Session with peer {} terminated: {}", this.name, cause);
+ releaseConnection();
+ }
+
+ @Override
+ public String toString() {
+ return addToStringAttributes(MoreObjects.toStringHelper(this)).toString();
+ }
+
+ protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
+ toStringHelper.add("name", this.name);
+ toStringHelper.add("tables", this.tables);
+ return toStringHelper;
+ }
+
+ @Override
+ public String getName() {
+ return this.name;
+ }
+
+ protected RIB getRib() {
+ return this.rib;
+ }
+
+ @Override
+ public void releaseConnection() {
+ dropConnection();
+ cleanup();
+ }
+
+ @GuardedBy("this")
+ private void dropConnection() {
+ if (this.runtimeReg != null) {
+ this.runtimeReg.close();
+ this.runtimeReg = null;
+ }
+ if (this.session != null) {
+ this.session.close();
+ this.session = null;
+ }
+ }
+
+ @Override
+ public boolean isSessionActive() {
+ return this.session != null;
+ }
+
+ @Override
+ public synchronized byte[] getRawIdentifier() {
+ return Arrays.copyOf(this.rawIdentifier, this.rawIdentifier.length);
+ }
+
+ @Override
+ public void resetSession() {
+ releaseConnection();
+ }
+
+ @Override
+ public void resetStats() {
+ if (this.session instanceof BGPSessionStatistics) {
+ ((BGPSessionStatistics) this.session).resetSessionStats();
+ }
+ }
+
+ public synchronized void registerRootRuntimeBean(final BGPPeerRuntimeRegistrator registrator) {
+ this.registrator = registrator;
+ }
+
+ @Override
+ public BgpSessionState getBgpSessionState() {
+ if (this.session instanceof BGPSessionStatistics) {
+ return ((BGPSessionStatistics) this.session).getBgpSesionState();
+ }
+ return new BgpSessionState();
+ }
+
+ @Override
+ public synchronized BgpPeerState getBgpPeerState() {
+ final BgpPeerState peerState = new BgpPeerState();
+ final List<RouteTable> routes = Lists.newArrayList();
+ for (final TablesKey tablesKey : this.tables) {
+ final RouteTable routeTable = new RouteTable();
+ routeTable.setTableType("afi=" + tablesKey.getAfi().getSimpleName() + ",safi=" + tablesKey.getSafi().getSimpleName());
+ routeTable.setRoutesCount(this.rib.getRoutesCount(tablesKey));
+ routes.add(routeTable);
+ }
+ peerState.setRouteTable(routes);
+ peerState.setSessionEstablishedCount(this.sessionEstablishedCounter);
+ return peerState;
+ }
+
+ @Override
+ public void onTransactionChainFailed(final TransactionChain<?, ?> chain, final AsyncTransaction<?, ?> transaction, final Throwable cause) {
+ // TODO Auto-generated method stub
+
+ }
+
+ @Override
+ public void onTransactionChainSuccessful(final TransactionChain<?, ?> chain) {
+ // TODO Auto-generated method stub
+ }
}
Code Review / bgpcep.git / blobdiff